rotary engine

Scientists at Columbia University are using their research to think differently about sustainable energy generation. And that approach is allowing the team to harness an invisible power source that’s available nearly everywhere—water evaporation.

While clearing out some junk in my garage, I came across a October 1980 copy of Popular Mechanics that contained the above story with “spy photos” of a two-passenger electric hybrid GM was working on for sales in 1985. Keep in mind, this was a full decade before GM’s legendary EV-1. The same issue of…